A,B为有理数,A+B>0:A,B的结合为正当关系. 否则为不正当关系
A,B为有理数,A+B>0:A,B的结合为正当关系. 否则为不正当关系
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy